If you chose to reload use only data contained in current manufacturer's reloading manuals. Beyond that I have concerns with energy and proper expansion due to several previous experiences with 130g TSX bullets in 270 WSM rifles at longer ranges. The best I could get was three inch groups at 100 yards. Namely, feed and function related issues. where can i get clean new brass for 243 wssm? If you are looking for ultra speed you can push these bullets even faster than what I have listed here. To maximize performance, the ballistics experts at Hodgdon Powder Co., Inc. have developed a comprehensive Reloading Guide to provide handloaders with current data for Accurate Powders. .243 WSSM / .243 Winchester Super Short Magnum (Hodgdon Data Maximum Loads) … .243 WSSM (Winchester Super Short Magnum) Load Data Major manufacturer Olympic Arms was quick to recognize this high performance caliber and how it fits into the AR-15 platform. Good info. 243. Two of them have 18” hand lapped stainless steel threaded barrels and four of them have 20” hand lapped stainless steel threaded barrels. I could not reach anyone at Winchester for comment on the legal aspects of this, but here is the rumored problem. The only problem I have with my Olympic arms .243wssm is ejecting. Hornady Manufacturing Company develops and publishes reloading data for the Handbook of Cartridge Reloading.Occasionally, we will temporarily publish load data on this page when a bullet becomes available and is not yet listed in the latest edition of the handbook. 243 WSSM ( Winchester Super Short Magnum ) Load Data. I neck up the 223 wssm cases for my 243 wssm and have shot thousands for rounds…..they are less expensive than the 243 Wssm cases. I understand they chrome lined the barrels of the first bolt action rifles put out but I never read about barrel erosion issues from any consumer. I have head shot coyotes at over 600 yards with this rifle. 243 WSSM ( Winchester Super Short Magnum ) Load Data Major manufacturer Olympic Arms was quick to recognize this high performance caliber and how it fits into the AR-15 platform. The 243WSSM is next on the list. I have a ton of ammo and clean new brass to boot ………and a 2004/5 S/S Winchester Coyote to go with it….. whats the problem again ? (as we’ve not seen those yet), Email him directly thru: VictoryDefense.com (Comments Section) or thru ARHunters.com, 243 is one of the best all round cal // I had very good result use 85 -90 gr bullet on deer of all size and type out to 400 yrds. It is based off the .300 Winchester Short Magnum cartridge and has a 1:10 twist with a large rifle primer. The overwhelming complaint expressed about this round was how hard it fed or failed to feed. John Whidden of Whidden Gunworks used the .243 Winchester cartridge to win the 2017 NRA Long Range Championship, his fifth LR title at Camp Perry (and second in a row). Now it appears the only hope of getting affordable, widely available, 243 WSSM ammunition will be when the patent sunsets and it becomes public domain – less than a year away possibly. The way bolt actions operate meant there was not enough engineering put into getting that short little round keg of spitfire up and into the chamber. See my blog entry. I think there could be wide eyed masses of semi-auto shooters waiting for a round like this that they could affordably upgrade their ARs with and have a great hunting caliber available. You may have heard that one of the reasons the 243 WSSM withered on the vine was that it “burned up” barrels too fast. That just so happens to qualify the AR-15 platform actions as perfect! See target groups and more information on this 105 A-Max load. Next step is to put pressure on Winchester to make another production run of this caliber. This is analogous to Freeware in the software industry, or the fact the AK47 was never patented. Due to the extremely high velocities achievable with this cartridge, shortened barrel life can result depending on your load. I need to look up the load data on the 243 wssm. While long range shooters and hunters were, and are, focused on traditional (bolt action) feed issues, the mechanical performance failings of the 243 WSSM are simply solved by introducing it into a modern sporting action. Ballistics shine as well. Never lost one deer or even seen a deer take a step after having 87 grns scream through at 3600 fps. Same 55 Gr. The Tipped Triple shock has done wonders on elk with the 243 WSSM but again, I'm not entirely comfortable with expansion past 350 yards. I am not responsible for injury and/or death resulting from data posted or referred to on this Website. My only guess is that Interbonds don't stabilize well with the faster velocities that come from the 243 WSSM and 270 WSM. Starline’s .243 Winchester brass was used for this article. Winchester created the 243 WSSM and introduced it in 2003. Awesome Accuracy! .243 WSSM / .243 Winchester Super Short Magnum (Hodgdon Data) reloading data with 178 loads. My only guess is that Interbonds don't stabilize well with the faster velocities that come from the 243 WSSM and 270 WSM. Nothing is being manufactured by the patent holder. Load Data. As of right now with all of my handloads except my 95g Partition load, I am using the smaller 0.242" diameter Tapered Expander. There is a parallel story I wanted to know more about too related to how the 6.5 Grendel came to mass production. Select your cartridge type from the drop-down list. All 3 calibers use the same base casing, the neck opening is just sized differently……so the cases can be easily necked up or down and used for any of the 3 calibers. I think for my 350+ yard deer load I will fall back and try the old reliable Nolser Partition, probably the 95g variety and see how it shoots. Olympic Arms produced their first 243 WSSM production rifle in 2004 and included production models in their 2005 catalog. 22-250 Remington Load Data; 22-250 Remington Ackley Improved Load Data; 220 Swift Load Data; 223 Win Super Short Magnum (WSSM) Load Data; 6mm PPC-USA Load Data; 6mm Creedmoor Load Data; 6mm Bench Rest Remington Load Data; 243 Winchester Load Data; 6mm Remington Load Data; 243 Win Super Short Magnum (WSSM) Load Data; 240 Weatherby Magnum Load Data bobnob17 OP. Reloaders are urged to be careful not to either under or over load the .243WSSM, as this is a pressure sensitive cartridge. Read into that what you will, but it tells me that there could be some truth to this whole settlement agreement with Winchester which appears confidential. Bullet Type Primer. Reloaders are urged to be careful not to either under or over load the .243WSSM, as this is a pressure sensitive cartridge. ... From what I have read they are worth the wait. Great Accuracy! They never take a step. The .22-243 does it's best work with the same powders that give top performance in the Swift and WSSM. Maybe… Read more », My company (which shall remain nameless here in the public domain) has used brass resized by Hillbilly Brass for the 25WSSM. Although such technical aspects are way above my head, I know they are important to the performance of Super Short Magnum cartridges. The loads here are my goto sub minute-of-angle accurate hunting loads. Thanks for any info. That bullet has preformed very well on elk. I found the 95g Nosler Partition load I like... well, maybe I'll tweak it some more in the future but for now I'm happy. The AR platform is next just as soon as we get some barrel blanks in. I asked for some clarification from Alexander Arms about the process of 6.5Grendel coming to mass production to compare what seems to be going on here with the 243 WSSM or Winchester Super Short Magnum. It was only 104 degrees that day. It is vague and rather surprising, as well as frustrating, considering that most common calibers are in the public domain and readily available for anyone to mass produce. I really like this Superformance 80g Barnes Triple Shock load. USA -(Ammoland.com)- To begin with, there are statements in this article that are purely my own, and my opinions are obvious and blatant. The new one is 0.243 in diameter and my old broken one (Oops!) Click Here to download Sierra Bullet’s complete .243 Winchester Load Map as a .pdf (Adobe Acrobat) file. Winchester's purpose was to ensure that there would be ammunition on the market (and that's a good thing). I'm working on a load for the 95g Nosler Partition. 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